# What is the function of file 【/usr/src/node-red/core】 in Node-Red?
**URL:** https://discourse.nodered.org/t/what-is-the-function-of-file-usr-src-node-red-core-in-node-red/84267
**Category:** General
**Tags:** docker
**Created:** [4 January 2024 01:20 UTC](https://discourse.nodered.org/t/what-is-the-function-of-file-usr-src-node-red-core-in-node-red/84267 "2024-01-04T01:20:37Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@Yesung](https://discourse.nodered.org/u/Yesung)
#### Post date: [4 January 2024 01:20 UTC](https://discourse.nodered.org/t/what-is-the-function-of-file-usr-src-node-red-core-in-node-red/84267/1 "2024-01-04T01:20:37Z")
I installed a **Docker based** Node-Red on the ARM v7 architecture in the Ubuntu system,
It was found that in the Docker, there is a file space **occupying a large amount** ( **/usr/src/node-red/core** , size 593.1M),
What is the purpose of this file and why does it take up so much space? Can its space occupation be reduced?
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### Author:  [@knolleary](https://discourse.nodered.org/u/knolleary)
#### Post date: [4 January 2024 09:48 UTC](https://discourse.nodered.org/t/what-is-the-function-of-file-usr-src-node-red-core-in-node-red/84267/2 "2024-01-04T09:48:43Z")
It looks like a core dump file following a crash - the timestamp is much more recent than anything else.
Is this a newly created container? What image are you using exactly?
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### Author:  [@Yesung](https://discourse.nodered.org/u/Yesung)
#### Post date: [4 January 2024 09:58 UTC](https://discourse.nodered.org/t/what-is-the-function-of-file-usr-src-node-red-core-in-node-red/84267/3 "2024-01-04T09:58:52Z")
I installed a Docker based Node-Red using the following command，created approximately a month ago:
docker run -v /node\_red\_data:/data --group-add dialout -p 1880:1880 --privileged=true --restart=always --name mynodered -u root:dialout nodered/node-red
【A core dump file following a crash】
- What content will be included and under what circumstances will the file be updated？
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### Author:  [@Yesung](https://discourse.nodered.org/u/Yesung)
#### Post date: [4 January 2024 10:02 UTC](https://discourse.nodered.org/t/what-is-the-function-of-file-usr-src-node-red-core-in-node-red/84267/4 "2024-01-04T10:02:13Z")
Thank you for your guidance
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### Author:  [@knolleary](https://discourse.nodered.org/u/knolleary)
#### Post date: [4 January 2024 10:02 UTC](https://discourse.nodered.org/t/what-is-the-function-of-file-usr-src-node-red-core-in-node-red/84267/5 "2024-01-04T10:02:17Z")
> - What content will be included and under what circumstances will the file be updated？
The file is generated by the OS when a process crashes. I don't know all the specific scenarios that can happen in this particular case.
It will include a full snapshot of the process memory and other things to help debug the crash - this is a standard linux thing, nothing specific to Node-RED.
You can delete the file - Node-RED doesn't use it.
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### Author:  [@Yesung](https://discourse.nodered.org/u/Yesung)
#### Post date: [4 January 2024 10:03 UTC](https://discourse.nodered.org/t/what-is-the-function-of-file-usr-src-node-red-core-in-node-red/84267/6 "2024-01-04T10:03:55Z")
Thank you for your great help
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [18 January 2024 10:04 UTC](https://discourse.nodered.org/t/what-is-the-function-of-file-usr-src-node-red-core-in-node-red/84267/7 "2024-01-18T10:04:03Z")
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